Problem: At 1000 K, Kc = 2.23 × 1022 for the reaction:     2 CO(g) + O2(g) ⇌ 2 CO2(g)What is Kc for the following reaction:6 CO2(g) ⇌ 6 CO(g) + 3 O2(g)A. 9.02 × 10–68 B. 1.11 × 1067 C. 4.48 × 10–23D. 3.55 × 10–8 E. 2.81 × 107

FREE Expert Solution

We're being asked to calculate the Kc for the following reaction: 

6 CO2(g) 6 CO(g) + 3 O2(g). 

We're given the reaction:     2 CO(g) + O2(g) 2 CO2(g)       Kc = 2.23 × 1022  


To calculate the Kc of the reaction equation, we’re going to use Hess’s Law. We’re going to manipulate the reactions with given Kc value to get the reaction equation with the unknown Kc.

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Problem Details

At 1000 K, Kc = 2.23 × 1022 for the reaction:     2 CO(g) + O2(g) ⇌ 2 CO2(g)

What is Kc for the following reaction:

6 CO2(g) ⇌ 6 CO(g) + 3 O2(g)

A. 9.02 × 10–68 

B. 1.11 × 1067 

C. 4.48 × 10–23

D. 3.55 × 10–8 

E. 2.81 × 107

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